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</head>
<body>

<div class="container">

    <div class="jumbotron">
        <h1 class="display-4">Hello,dear friend!</h1>
        <p class="lead">Welcome to animal paradise.</p>
        <hr class="my-4">
        <p>This is a magical place, a place that can make you happy.</p>
        <p class="lead">
            <a class="btn btn-primary btn-lg" href="#" role="button" data-toggle="modal" data-target="#exampleModal">Learn more</a>
        </p>

    </div>

    <div class="modal" id="exampleModal">
        <div class="modal-dialog" >

            <form>

                <div class="modal-content">

                    <div class="modal-header">
                        <h4>用户登录</h4>
                    </div>
                    <div class="modal-body">
                        <div class="form-group row">
                            <label for="username" style="text-align: right" class="col-md-4 col-control-label">账号:</label>
                            <div class="col-md-8">
                                <input name="username" class="form-control" id="username" placeholder="请输入账号">
                            </div>
                        </div>

                        <div class="form-group row">
                            <label for="password"  style="text-align: right" class="col-md-4 col-control-label">密码:</label>
                            <div class="col-md-8">
                                <input name="password" class="form-control" id="password" type="password" placeholder="请输入密码">
                            </div>
                        </div>
                    </div>
                    <div class="modal-footer">
                        <input type="submit" class="btn btn-success col-md-12" value="登录">
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        <div class="carousel-inner">
            <div class="carousel-item active">
                <img class="d-block w-100" src="./img/300138.jpg" alt="First slide">
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            <span class="carousel-control-next-icon" aria-hidden="true"></span>
            <span class="sr-only">Next</span>
        </a>
    </div>



    <div class="card-columns">
        <div class="card">
            <img class="card-img-top" src="./img/323655.jpg" alt="Card image cap">
            <div class="card-body">
                <h5 class="card-title">Card title that wraps to a new line</h5>
                <p class="card-text">This is a longer card with supporting text below as a natural lead-in to additional content. This content is a little bit longer.</p>
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            <img class="card-img-top" src="./img/cangsgu.jpg" alt="Card image cap">
            <div class="card-body">
                <h5 class="card-title">Card title</h5>
                <p class="card-text">This card has supporting text below as a natural lead-in to additional content.</p>
                <p class="card-text"><small class="text-muted">Last updated 3 mins ago</small></p>
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            <img class="card-img-top" src="./img/haibao.jpg" alt="Card image cap">
            <div class="card-body">
                <h5 class="card-title">Card title</h5>
                <p class="card-text">This card has supporting text below as a natural lead-in to additional content.</p>
                <p class="card-text"><small class="text-muted">Last updated 3 mins ago</small></p>
            </div>
        </div>
        <div class="card bg-primary text-white text-center p-3">
            <blockquote class="blockquote mb-0">
                <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Integer posuere erat.</p>
                <footer class="blockquote-footer">
                    <small>
                        Someone famous in <cite title="Source Title">Source Title</cite>
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            </blockquote>
        </div>
        <div class="card">
            <img class="card-img-top" src="./img/haitun.jpg" alt="Card image cap">
            <div class="card-body">
                <h5 class="card-title">Card title</h5>
                <p class="card-text">This card has supporting text below as a natural lead-in to additional content.</p>
                <p class="card-text"><small class="text-muted">Last updated 3 mins ago</small></p>
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            <img class="card-img-top" src="./img/zhuomuniao.jpg" alt="Card image cap">
            <div class="card-body">
                <h5 class="card-title">Card title</h5>
                <p class="card-text">This card has supporting text below as a natural lead-in to additional content.</p>
                <p class="card-text"><small class="text-muted">Last updated 3 mins ago</small></p>
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            <img class="card-img-top" src="./img/323152.jpg" alt="Card image cap">
            <div class="card-body">
                <h5 class="card-title">Card title</h5>
                <p class="card-text">This card has supporting text below as a natural lead-in to additional content.</p>
                <p class="card-text"><small class="text-muted">Last updated 3 mins ago</small></p>
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